EP2523411A3 - Method and device for receiving an imbalanced transmission signal - Google Patents

Method and device for receiving an imbalanced transmission signal Download PDF

Info

Publication number
EP2523411A3
EP2523411A3 EP20120166381 EP12166381A EP2523411A3 EP 2523411 A3 EP2523411 A3 EP 2523411A3 EP 20120166381 EP20120166381 EP 20120166381 EP 12166381 A EP12166381 A EP 12166381A EP 2523411 A3 EP2523411 A3 EP 2523411A3
Authority
EP
European Patent Office
Prior art keywords
signal
power level
receiving
communication signal
antenna
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP20120166381
Other languages
German (de)
French (fr)
Other versions
EP2523411B1 (en
EP2523411A2 (en
Inventor
Honglei Miao
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia Technologies Oy
Original Assignee
Nokia Oyj
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nokia Oyj filed Critical Nokia Oyj
Publication of EP2523411A2 publication Critical patent/EP2523411A2/en
Publication of EP2523411A3 publication Critical patent/EP2523411A3/en
Application granted granted Critical
Publication of EP2523411B1 publication Critical patent/EP2523411B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/024—Channel estimation channel estimation algorithms
    • H04L25/0242—Channel estimation channel estimation algorithms using matrix methods
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0204—Channel estimation of multiple channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03891—Spatial equalizers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
    • H04L2025/03426—Arrangements for removing intersymbol interference characterised by the type of transmission transmission using multiple-input and multiple-output channels

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Radio Transmission System (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Communication systems may benefit from an HSPA MIMO receiver configured for receipt of an imbalanced transmit signal, as well as a method for operating the receiver. According to certain embodiments, a method can include receiving a multiple-input multiple-output system communication signal comprising at least one primary signal at a first power level from a first antenna and a secondary signal at a second power level different from the first power level from a second antenna. The method can also include estimating at least one parameter of the communication signal. The method can further include applying the at least one parameter as estimated to calculate linear minimum mean square error coefficients. The method can additionally include applying the linear minimum mean square error coefficients to process the communication signal.
EP12166381.9A 2011-05-13 2012-05-02 Method and device for receiving an imbalanced transmission signal Not-in-force EP2523411B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13/106,937 US8923377B2 (en) 2011-05-13 2011-05-13 Methods and devices for receipt of imbalanced transmission signal

Publications (3)

Publication Number Publication Date
EP2523411A2 EP2523411A2 (en) 2012-11-14
EP2523411A3 true EP2523411A3 (en) 2014-04-30
EP2523411B1 EP2523411B1 (en) 2016-04-27

Family

ID=46062090

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12166381.9A Not-in-force EP2523411B1 (en) 2011-05-13 2012-05-02 Method and device for receiving an imbalanced transmission signal

Country Status (3)

Country Link
US (1) US8923377B2 (en)
EP (1) EP2523411B1 (en)
CN (1) CN102780659B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110519186B (en) * 2018-05-22 2022-03-18 北京小米松果电子有限公司 Method, apparatus and storage medium for parameter estimation and electronic device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060159160A1 (en) * 2005-01-14 2006-07-20 Qualcomm Incorporated Optimal weights for MMSE space-time equalizer of multicode CDMA system

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US7492815B2 (en) 2004-11-24 2009-02-17 Nokia Corporation Reduced parallel and pipelined high-order MIMO LMMSE receiver architecture
US20060146953A1 (en) * 2004-12-30 2006-07-06 Balaji Raghothaman Method and apparatus for estimating transmit weights for multiple antennas
CN101112012A (en) * 2004-12-30 2008-01-23 诺基亚公司 Method and apparatus for estimating transmit weights for multiple antennas
JP5745748B2 (en) 2005-11-21 2015-07-08 クゥアルコム・インコーポレイテッドＱｕａｌｃｏｍｍ Ｉｎｃｏｒｐｏｒａｔｅｄ Optimal weights for MMSE space time equalizers in multicode CDMA systems
US7889822B2 (en) * 2006-09-21 2011-02-15 Broadcom Corporation Frequency domain equalizer with one dominant interference cancellation for dual antenna radio
US7889131B2 (en) * 2007-03-26 2011-02-15 Cisco Technology, Inc. Beamformed space time code communication with testing spatial signature generation
US7983353B2 (en) * 2008-02-25 2011-07-19 Telefonaktiebolaget Lm Ericsson (Publ) Code power estimation for MIMO signals
US8781011B2 (en) * 2008-02-25 2014-07-15 Telefonaktiebolaget Lm Ericsson (Publ) Receiver parametric covariance estimation for precoded MIMO transmissions
JP4770939B2 (en) * 2009-02-13 2011-09-14 ソニー株式会社 COMMUNICATION DEVICE, COMMUNICATION CONTROL METHOD, AND COMMUNICATION SYSTEM
US8509705B2 (en) * 2009-11-02 2013-08-13 Motorola Mobility Llc Differential closed-loop transmission feedback in wireless communication systems
WO2012096621A1 (en) * 2011-01-14 2012-07-19 Telefonaktiebolaget L M Ericsson (Publ) Antenna weighting in relation to transmisisons from two cells

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060159160A1 (en) * 2005-01-14 2006-07-20 Qualcomm Incorporated Optimal weights for MMSE space-time equalizer of multicode CDMA system

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
CLEMENS BUCHACHER ET AL: "A SEMI-BLIND BASE STATION POWER ESTIMATION ALGORITHM FOR INTERFERENCE AWARE HSDPA RECEIVERS", EURASIP, 2010, 27 August 2010 (2010-08-27), pages 1592 - 1596, XP055106956, Retrieved from the Internet <URL:http://ubdocs.uni-klu.ac.at/open/voll/fodok/inf/AC08227251.pdf> [retrieved on 20140311] *
LENARDI M ET AL: "A RAKE structured SINR maximizing mobile receiver for the WCDMA downlink", CONFERENCE RECORD OF THE 35TH. ASILOMAR CONFERENCE ON SIGNALS, SYSTEMS, & COMPUTERS. PACIFIC GROOVE, CA, NOV. 4 - 7, 2001; [ASILOMAR CONFERENCE ON SIGNALS, SYSTEMS AND COMPUTERS], NEW YORK, NY : IEEE, US, 4 November 2001 (2001-11-04), pages 410 - 414vol.1, XP032139740, ISBN: 978-0-7803-7147-7, DOI: 10.1109/ACSSC.2001.986960 *
QUALCOMM INCORPORATED: "CQI reporting for MIMO UE's when the P-CPICH and S-CPICH have unequal power settings", 3GPP DRAFT; R1-103847_IMPACT UNEQUAL CPICH POWER MIMO, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Dresden, Germany; 20100628, 22 June 2010 (2010-06-22), XP050449262 *

Also Published As

Publication number Publication date
US8923377B2 (en) 2014-12-30
CN102780659A (en) 2012-11-14
EP2523411B1 (en) 2016-04-27
EP2523411A2 (en) 2012-11-14
US20120288032A1 (en) 2012-11-15
CN102780659B (en) 2016-04-13

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